Pytest Run a Start-up Script

Question

Before pytest actually collects and executes my module , I need to run an external start-script from another module to do some patching, i would like to edit the pytest source. Where exactly in pytest source code should I edit to achieve this? I mean my start-up script must run by default before all other activities. Any pointers will be appreciated.

Answer 1

Add conftest.py to your project home folder and your startup lay in pytest_sessionstart()

def pytest_sessionstart(session):
    pass

ref. hook starting